umbral | de34cde65aade458fe105a3d66395848e4102a0d179d16e72d1538069faee469

Analysis

max time kernel
140s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
10-10-2023 22:22

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General

Target

celestial.exe
Size

229KB
MD5

d57ec258aaffb601a3594f9ac3a44b6d
SHA1

c4b592284058deda8356b1a66e80903ddbd00f1f
SHA256

de34cde65aade458fe105a3d66395848e4102a0d179d16e72d1538069faee469
SHA512

300cae33a20e9d17c2211ee88867b1395ee094eb34f0e25143914935bb0148a60f9f3f89e7184dd2c83cc5b74871edce617ee51c26320e1b61811c83a0400c2a
SSDEEP

6144:tloZMJrIkd8g+EtXHkv/iD4cME/EKtFuKr20VJg8qb8e1mQei:voZKL+EP8cME/EKtFuKr20VJgD3

Score

10^/10

umbral spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/3596-0-0x0000027844680000-0x00000278446C0000-memory.dmp	family_umbral

Umbral
Umbral stealer is an opensource moduler stealer written in C#.
stealer umbral

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	celestial.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
30	ip-api.com

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
4336	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3188	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
3460	powershell.exe
3460	powershell.exe
2736	powershell.exe
2736	powershell.exe
4340	powershell.exe
4340	powershell.exe
3468	powershell.exe
3468	powershell.exe
3236	powershell.exe
3236	powershell.exe
3236	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3596	celestial.exe
Token: SeDebugPrivilege	3460	powershell.exe
Token: SeDebugPrivilege	2736	powershell.exe
Token: SeDebugPrivilege	4340	powershell.exe
Token: SeDebugPrivilege	3468	powershell.exe
Token: SeIncreaseQuotaPrivilege	3524	wmic.exe
Token: SeSecurityPrivilege	3524	wmic.exe
Token: SeTakeOwnershipPrivilege	3524	wmic.exe
Token: SeLoadDriverPrivilege	3524	wmic.exe
Token: SeSystemProfilePrivilege	3524	wmic.exe
Token: SeSystemtimePrivilege	3524	wmic.exe
Token: SeProfSingleProcessPrivilege	3524	wmic.exe
Token: SeIncBasePriorityPrivilege	3524	wmic.exe
Token: SeCreatePagefilePrivilege	3524	wmic.exe
Token: SeBackupPrivilege	3524	wmic.exe
Token: SeRestorePrivilege	3524	wmic.exe
Token: SeShutdownPrivilege	3524	wmic.exe
Token: SeDebugPrivilege	3524	wmic.exe
Token: SeSystemEnvironmentPrivilege	3524	wmic.exe
Token: SeRemoteShutdownPrivilege	3524	wmic.exe
Token: SeUndockPrivilege	3524	wmic.exe
Token: SeManageVolumePrivilege	3524	wmic.exe
Token: 33	3524	wmic.exe
Token: 34	3524	wmic.exe
Token: 35	3524	wmic.exe
Token: 36	3524	wmic.exe
Token: SeIncreaseQuotaPrivilege	3524	wmic.exe
Token: SeSecurityPrivilege	3524	wmic.exe
Token: SeTakeOwnershipPrivilege	3524	wmic.exe
Token: SeLoadDriverPrivilege	3524	wmic.exe
Token: SeSystemProfilePrivilege	3524	wmic.exe
Token: SeSystemtimePrivilege	3524	wmic.exe
Token: SeProfSingleProcessPrivilege	3524	wmic.exe
Token: SeIncBasePriorityPrivilege	3524	wmic.exe
Token: SeCreatePagefilePrivilege	3524	wmic.exe
Token: SeBackupPrivilege	3524	wmic.exe
Token: SeRestorePrivilege	3524	wmic.exe
Token: SeShutdownPrivilege	3524	wmic.exe
Token: SeDebugPrivilege	3524	wmic.exe
Token: SeSystemEnvironmentPrivilege	3524	wmic.exe
Token: SeRemoteShutdownPrivilege	3524	wmic.exe
Token: SeUndockPrivilege	3524	wmic.exe
Token: SeManageVolumePrivilege	3524	wmic.exe
Token: 33	3524	wmic.exe
Token: 34	3524	wmic.exe
Token: 35	3524	wmic.exe
Token: 36	3524	wmic.exe
Token: SeIncreaseQuotaPrivilege	4544	wmic.exe
Token: SeSecurityPrivilege	4544	wmic.exe
Token: SeTakeOwnershipPrivilege	4544	wmic.exe
Token: SeLoadDriverPrivilege	4544	wmic.exe
Token: SeSystemProfilePrivilege	4544	wmic.exe
Token: SeSystemtimePrivilege	4544	wmic.exe
Token: SeProfSingleProcessPrivilege	4544	wmic.exe
Token: SeIncBasePriorityPrivilege	4544	wmic.exe
Token: SeCreatePagefilePrivilege	4544	wmic.exe
Token: SeBackupPrivilege	4544	wmic.exe
Token: SeRestorePrivilege	4544	wmic.exe
Token: SeShutdownPrivilege	4544	wmic.exe
Token: SeDebugPrivilege	4544	wmic.exe
Token: SeSystemEnvironmentPrivilege	4544	wmic.exe
Token: SeRemoteShutdownPrivilege	4544	wmic.exe
Token: SeUndockPrivilege	4544	wmic.exe
Token: SeManageVolumePrivilege	4544	wmic.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 3596 wrote to memory of 1624	3596	celestial.exe	86
PID 3596 wrote to memory of 1624	3596	celestial.exe	86
PID 3596 wrote to memory of 3460	3596	celestial.exe	88
PID 3596 wrote to memory of 3460	3596	celestial.exe	88
PID 3596 wrote to memory of 2736	3596	celestial.exe	91
PID 3596 wrote to memory of 2736	3596	celestial.exe	91
PID 3596 wrote to memory of 4340	3596	celestial.exe	93
PID 3596 wrote to memory of 4340	3596	celestial.exe	93
PID 3596 wrote to memory of 3468	3596	celestial.exe	99
PID 3596 wrote to memory of 3468	3596	celestial.exe	99
PID 3596 wrote to memory of 3524	3596	celestial.exe	103
PID 3596 wrote to memory of 3524	3596	celestial.exe	103
PID 3596 wrote to memory of 4544	3596	celestial.exe	106
PID 3596 wrote to memory of 4544	3596	celestial.exe	106
PID 3596 wrote to memory of 1536	3596	celestial.exe	108
PID 3596 wrote to memory of 1536	3596	celestial.exe	108
PID 3596 wrote to memory of 3236	3596	celestial.exe	109
PID 3596 wrote to memory of 3236	3596	celestial.exe	109
PID 3596 wrote to memory of 4336	3596	celestial.exe	112
PID 3596 wrote to memory of 4336	3596	celestial.exe	112
PID 3596 wrote to memory of 3232	3596	celestial.exe	113
PID 3596 wrote to memory of 3232	3596	celestial.exe	113
PID 3232 wrote to memory of 3188	3232	cmd.exe	115
PID 3232 wrote to memory of 3188	3232	cmd.exe	115

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
1624	attrib.exe

C:\Users\Admin\AppData\Local\Temp\celestial.exe
"C:\Users\Admin\AppData\Local\Temp\celestial.exe"
1⤵
- Drops file in Drivers directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3596
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\celestial.exe"
  2⤵
  - Views/modifies file attributes
  PID:1624
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\celestial.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3460
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -EnableNetworkProtection AuditMode -Force -MAPSReporting Disabled -SubmitSamplesConsent NeverSend && powershell Set-MpPreference -SubmitSamplesConsent 2
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2736
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4340
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3468
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3524
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4544
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1536
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:3236
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:4336
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\celestial.exe" && pause
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3232
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - Runs ping.exe
    PID:3188

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
1KB

MD5
2cfc94abb81048f494b8f1e8e58be825

SHA1
49e2368168ab33c51f1cc83f14ad56468a348dba

SHA256
bc1f9b69690d25891c114db75adcd8da1bc216db7b279792f2d09a8d6ff69f71

SHA512
d9662ebb43fe23208f6066f243367790d1ebdcab3bdbe106c5c22e540923e0c3528d3377c788b0526a378590ff670274bfdbf4db7ce7aa4840a95d82039b9eb4

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
6d42b6da621e8df5674e26b799c8e2aa

SHA1
ab3ce1327ea1eeedb987ec823d5e0cb146bafa48

SHA256
5ab6a1726f425c6d0158f55eb8d81754ddedd51e651aa0a899a29b7a58619c4c

SHA512
53faffbda8a835bc1143e894c118c15901a5fd09cfc2224dd2f754c06dc794897315049a579b9a8382d4564f071576045aaaf824019b7139d939152dca38ce29

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
948B

MD5
efe05055dc30f1da03bd1653594f8b0a

SHA1
8650a67ec9d1b8eed7caa4e4c86ebb8531bc7ba2

SHA256
10b3d946f07601b28c5cd6ee36fd0fffb41f3d96094a478d088ce30ebf9a694d

SHA512
5096856b34336cafbd2ee4dc4709bfa39c8794d8fc42777a460b79d52482b699013f237dfee2ecaf2b21487cc933b807bc5bad9b81f7070ba0dc4f6efcfa2f36

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
1KB

MD5
d3235ed022a42ec4338123ab87144afa

SHA1
5058608bc0deb720a585a2304a8f7cf63a50a315

SHA256
10663f5a1cb0afe5578f61ebaae2aafb363544e47b48521f9c23be9e6e431b27

SHA512
236761b7c68feca8bd62cba90cff0b25fac5613837aaa5d29ae823ace8b06a2057553cf7e72b11ccc59b6c289e471ca1bbac1a880aef5e2868875371a17c1abf

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rqv13ai4.xtj.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2736-34-0x000001CFDB7A0000-0x000001CFDB7B0000-memory.dmp

Filesize
64KB

Download
memory/2736-35-0x000001CFDB7A0000-0x000001CFDB7B0000-memory.dmp

Filesize
64KB

Download
memory/2736-32-0x000001CFDB7A0000-0x000001CFDB7B0000-memory.dmp

Filesize
64KB

Download
memory/2736-38-0x00007FFEF8FF0000-0x00007FFEF9AB1000-memory.dmp

Filesize
10.8MB

Download
memory/2736-31-0x00007FFEF8FF0000-0x00007FFEF9AB1000-memory.dmp

Filesize
10.8MB

Download
memory/3236-99-0x00007FFEF8FF0000-0x00007FFEF9AB1000-memory.dmp

Filesize
10.8MB

Download
memory/3236-102-0x000002245F6C0000-0x000002245F6D0000-memory.dmp

Filesize
64KB

Download
memory/3236-103-0x000002245F6C0000-0x000002245F6D0000-memory.dmp

Filesize
64KB

Download
memory/3236-101-0x000002245F6C0000-0x000002245F6D0000-memory.dmp

Filesize
64KB

Download
memory/3236-105-0x00007FFEF8FF0000-0x00007FFEF9AB1000-memory.dmp

Filesize
10.8MB

Download
memory/3460-7-0x000001EEA0270000-0x000001EEA0292000-memory.dmp

Filesize
136KB

Download
memory/3460-20-0x00007FFEF8FF0000-0x00007FFEF9AB1000-memory.dmp

Filesize
10.8MB

Download
memory/3460-17-0x000001EEA0260000-0x000001EEA0270000-memory.dmp

Filesize
64KB

Download
memory/3460-16-0x000001EEA0260000-0x000001EEA0270000-memory.dmp

Filesize
64KB

Download
memory/3460-5-0x000001EEA0260000-0x000001EEA0270000-memory.dmp

Filesize
64KB

Download
memory/3460-4-0x000001EEA0260000-0x000001EEA0270000-memory.dmp

Filesize
64KB

Download
memory/3460-3-0x00007FFEF8FF0000-0x00007FFEF9AB1000-memory.dmp

Filesize
10.8MB

Download
memory/3468-84-0x0000024EC9B60000-0x0000024EC9B70000-memory.dmp

Filesize
64KB

Download
memory/3468-82-0x0000024EC9B60000-0x0000024EC9B70000-memory.dmp

Filesize
64KB

Download
memory/3468-86-0x00007FFEF8FF0000-0x00007FFEF9AB1000-memory.dmp

Filesize
10.8MB

Download
memory/3468-81-0x0000024EC9B60000-0x0000024EC9B70000-memory.dmp

Filesize
64KB

Download
memory/3468-80-0x00007FFEF8FF0000-0x00007FFEF9AB1000-memory.dmp

Filesize
10.8MB

Download
memory/3596-42-0x000002785ED60000-0x000002785EDB0000-memory.dmp

Filesize
320KB

Download
memory/3596-36-0x00007FFEF8FF0000-0x00007FFEF9AB1000-memory.dmp

Filesize
10.8MB

Download
memory/3596-0-0x0000027844680000-0x00000278446C0000-memory.dmp

Filesize
256KB

Download
memory/3596-109-0x00007FFEF8FF0000-0x00007FFEF9AB1000-memory.dmp

Filesize
10.8MB

Download
memory/3596-1-0x00007FFEF8FF0000-0x00007FFEF9AB1000-memory.dmp

Filesize
10.8MB

Download
memory/3596-87-0x000002785EE40000-0x000002785EE4A000-memory.dmp

Filesize
40KB

Download
memory/3596-88-0x000002785EE70000-0x000002785EE82000-memory.dmp

Filesize
72KB

Download
memory/3596-43-0x000002785ED30000-0x000002785ED4E000-memory.dmp

Filesize
120KB

Download
memory/3596-46-0x0000027846230000-0x0000027846240000-memory.dmp

Filesize
64KB

Download
memory/3596-41-0x000002785EDB0000-0x000002785EE26000-memory.dmp

Filesize
472KB

Download
memory/3596-2-0x0000027846230000-0x0000027846240000-memory.dmp

Filesize
64KB

Download
memory/4340-44-0x00007FFEF8FF0000-0x00007FFEF9AB1000-memory.dmp

Filesize
10.8MB

Download
memory/4340-45-0x000001EC71820000-0x000001EC71830000-memory.dmp

Filesize
64KB

Download
memory/4340-70-0x00007FFEF8FF0000-0x00007FFEF9AB1000-memory.dmp

Filesize
10.8MB

Download